docs added
formatting changed in docs
knn queries description added to doc
r-tree doc structure slightly changed.
changed docs format - from BoostBook to QuickBook
naming error fixed
naming error fixed
Reference to temporary - error fixed.
R-tree methods and functions documented.
rtree::nearest() template parameter name changed.
size_t changed to Container::size_type in translator::index<Container>
added tests of some index's algorithms + index::margin() optimization.
some tests and optimizations.
tests added:
rtree- 2d, linear<4,2>, quadratic<4,2>, rstar<4,2>
queries - default, intersects, !intersects, !disjoint, not_disjoint
tabs changed to spaces in rstar/redistribute_elements.hpp
Fixed error in linear::find_greatest_normalized_separation.

Implemented rtree inserts and intersection queries tests for Points and pair<Box, int>.
implemented rtree intersection queries tests for 3d.
implemented tests for rtree spatial queries in 2d and 3d.
rtree tests divided into several files.
Added rtree predicate index::touches(). The code is commented out since the geometry::touches() algorithm is probably not finished yet. Fixed GCC compile errors in tests.
removed doubled algorithm index::overlap().